<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>用户主界面</title>
</head>

<frameset rows="80, * ">
    <frame src="usermain.html" scrolling="no"><br/>
    <frameset cols="150, * ">
        <frame src="user_left.html" scrolling="no">
        <frame src="user_bottom.html" name="main" scrolling="yes">
    </frameset>
</frameset>

</html>